// export default function (store) {
//   return function (next) {
//     return function (action) {

//     }
//   }
// }

// 简化
export default store => next => action => {
  console.log('中间件====》start')
  console.log(store)
  console.log(action)
  next(action)
  console.log('========中间件====》end')
  console.log('')
}